I helped the Lastic team build the first Polkadot coretime marketplace, enabling users to trade and manage blockspace efficiently. My work included core interlacing (adjusting and selling unused coretime as NFTs), core partitioning (splitting coretime NFTs for resale), and an escrow marketplace PoC for secure 2/3 multisig trades. I also developed the Auto Teleport feature, which automatically moves DOT between the Relaychain and Coretime chain when needed to reduce fragmentation in Polkadot.